#include <bits/stdc++.h>
using namespace std;

using i64 = long long;

int main() {
    cin.tie(nullptr)->sync_with_stdio(false);

    auto solve = [&]() {
        int n;
        cin >> n;

        valarray<double> x(n), y(n);
        for (int i = 0; i < n; i++) {
            cin >> x[i] >> y[i];
        }

        vector<vector<pair<string, valarray<double>>>> expr(10);
        expr[0].emplace_back("x", x);

        for (int n = 0; n <= 9; n++) {
            for (auto [s, a] : expr[n]) {
                if (abs(a - y).max() <= 1e-3) {
                    cout << s << '\n';
                    return;
                }
            }

            for (auto [s, a] : expr[n]) {
                expr[n + 1].emplace_back("sin(" + s + ")", sin(a));
                expr[n + 1].emplace_back("cos(" + s + ")", cos(a));
            }

            for (int i = 0; i <= n; i++) {
                int j = n - i;
                for (auto [s1, a1] : expr[i]) {
                    for (auto [s2, a2] : expr[j]) {
                        if (i <= j) {
                            expr[i + j + 2].emplace_back("(" + s1 + "+" + s2 + ")", a1 + a2);
                            expr[i + j + 2].emplace_back("(" + s1 + "*" + s2 + ")", a1 * a2);
                        }
                        expr[i + j + 2].emplace_back("(" + s1 + "-" + s2 + ")", a1 - a2);
                        if (abs(a2).min() >= 0.01) {
                            expr[i + j + 2].emplace_back("(" + s1 + "/" + s2 + ")", a1 / a2);
                        }
                    }
                }
            }
        }
    };
    
    solve();
    
    return 0;
}